High-Integrity Titanium Catalog for French Engineering
Engineered to DIN, ISO, and custom tolerances with rolled threads and micron-level concentricity for critical applications.
GR5 Titanium M8*20mm Countersunk Hex Socket Bolts
- StandardDIN 7991 / Flat
- Tensile Strength930-1020 MPa
- ToleranceISO metric 6g
GR5 Titanium M9*1.0*12mm Knurled Cylindrical Screws
- Thread PitchFine Metric 1.0mm
- FinishPrecision Turned
- Torque RatingHigh Grip / Manual
GR5 Titanium M8/M10/M12 Tapered Head Hex Bolts
- ProfileTapered / Low-Drag
- HardnessHRC 32-36
- ApplicationSuspension / Stems
GR5 Titanium M6*70mm Button Head Inner Hex Bolts
- Head GeometryDome / Half-Round
- Thread PitchM6 x 1.0 Rolled
- Density4.43 g/cm³
GR5 Titanium M10*1*33mm Hollow Hex Socket Bolts
- Weight Reduction-55% vs Steel
- Bore Concentricity±0.02mm
- SpecialtyHydraulic / Banjo Fluid
M8 GR5 Titanium Motorcycle Disc Brake Shoulder Screws
- Shoulder GroundRa 0.4 µm
- Shear Strength>550 MPa
- FitmentBrake Disc Rotors
OEM CNC Titanium Slotted Hexagonal Head Screws
- Axis Processed5-Axis Turn-Mill
- Drive StyleHex + Center Slot
- CertificationEN 10204 3.1 MTR
GR5 Titanium M8*20mm Countersunk Phillips Cross Screws
- Recess TypePhillips / PH3 Cross
- Fatigue LifeTested 10^7 Cycles
- Surface OptionPVD / Anodized
Metallurgical Benchmark: GR5 (Ti-6Al-4V) vs. Classical Fasteners
A data-backed comparative analysis of mass reduction, shear endurance, and corrosion behavior for European procurement managers.
| Alloy & Temper | Density (g/cm³) | Tensile Strength (MPa) | Yield Strength (0.2% MPa) | Strength-to-Weight | Lyon Regional Applications |
|---|---|---|---|---|---|
| GR5 (Ti-6Al-4V) Annealed | 4.43 | ≥ 895 - 1050 | ≥ 828 | 202 - 237 kN·m/kg | Aerospace subassemblies, EV suspensions, medical tooling |
| GR2 Pure Commercial Ti | 4.51 | ≥ 345 | ≥ 275 | 76.5 kN·m/kg | Chemical processing valves (Rhône Valley), heat exchangers |
| Stainless Steel 316L (A4-80) | 8.00 | ≥ 800 | ≥ 600 | 100 kN·m/kg | Standard industrial piping, high-mass maritime units |
| High-Tensile Steel 10.9 / 12.9 | 7.85 | 1040 - 1220 | 940 - 1100 | 132 - 155 kN·m/kg | Heavy railway plant components, high un-sprung mass bolts |
Precision Applications Across the Auvergne-Rhône-Alpes Industrial Axis
Lyon is France’s premier manufacturing metropolis. From chemical engineering along the Rhône to alpine robotics and additive integration, our titanium components fulfill mission-critical demands.
Aerospace & Drone Engineering (St-Exupéry & Valence Corridor)
Navzo produces flight-grade GR5 socket cap and hollow bolts with fatigue-resistant rolled threads (UNJ / MJ specs). They reduce rotational inertia and deadweight in regional avionics, UAV propulsion frames, and defense subsystems.
Chemical Corridor of Feyzin & Vallée de la Chimie
The southern Lyon industrial basin hosts petrochemical refining, catalysis, and specialty pharmaceutical plants. Our titanium hardware (GR2 & GR5) provides total immunity to chlorides, wet chlorine, and nitric acid stresses, ending galvanic corrosion.
High-Performance E-Mobility & Cycling Alpine Hub
Bordering the Alps, Lyon is the development center for premium e-bikes, gravel racing rigs, and performance motorcycles. We deliver custom hollow shoulder disc brake bolts, stem fasteners, and 12-point flange lock nuts with customized PVD finishes.
Medical Device & Bio-Tooling (Gerland Bio-District)
Gerland is internationally recognized for vaccine production, biomedical research, and surgical instruments. Our CNC turn-mill shop fabricates non-magnetic, bio-compatible Grade 5 ELI and Grade 2 parts cleaned to cleanroom assembly requirements.
Alpine Automation, Rail Transit & Cryogenic Systems
Operating between Lyon and Grenoble, regional high-speed rail and cryogenic instrumentation suppliers require fasteners unaffected by severe freeze-thaw cycles. Grade 5 preserves ductile fracture toughness at cryogenic temperatures down to -196°C.
Rapid Lyon Logistics: DAP & DDP Seamless Clearance
Navzo streamlines import processes for French procurement directors. With standardized DDP Lyon multimodal logistics (Air Freight to Saint-Exupéry LYS or Rail Express to Vénissieux), customs clearance and TVA handling are managed end-to-end.
Why Lyon Engineers Source Directly from Navzo Precision
Combining raw titanium reserve proximity in China's Titanium Valley with Western quality assurance systems.
Geographic Upstream Control
Headquartered in Baoji, Shaanxi since 2011, we secure premier titanium sponge and vacuum arc remelted (VAR) ingots directly from regional smelters. This eliminates intermediate merchant marks and guarantees raw material traceability for each production lot.
Turn-Mill & Cold Heading Integration
Our workshop houses high-speed automated headers, thread rolling machines, and advanced multi-axis CNC turn-mill stations. Unlike small machine shops that cut threads onto soft bar, our cold-formed and rolled threads retain continuous grain flow, preventing shear fatigue failure.
Full EN 10204 3.1 & Dimensional Metrology
Every shipment to Lyon includes comprehensive chemical spectroscopy (O, H, N, Fe, Al, V) and mechanical stress reports. We verify tolerances using optical profile projectors, Zeiss coordinate measuring machines (CMM), and go/no-go ring gauges to ISO metric classes.
Competitive Total Landed Cost
Lyon OEM procurement managers reduce direct parts spend by 30% to 45% compared to local European distributors, without sacrificing precision. Low minimum order quantities (100-200 pcs) allow agile prototyping before industrial scale-up.
European Engineering Support
Our engineering export department speaks technical English and handles French manufacturing inquiries. With an average response window under 60 minutes, DFM reviews for STEP, IGES, and DWG designs happen with zero lag time.
Specialized Surface Treatments In-House
Complete control over advanced finishing: Type II anodization for thread anti-galling, decorative Type III color spectrum (Gold, Burnt Blue, Violet), PVD vacuum coatings (DLC, TiN), and automated bead-blasting without subcontract delays.
Frequently Asked Questions by Lyon & French Engineering Buyers
Essential guidance on metallurgy, galling prevention, import compliance, and drawing specifications.
How does Navzo address thread galling on titanium assemblies in automated production?
Titanium naturally forms an instantaneous oxide film (TiO2) that can fuse under friction, causing severe micro-welding or galling. For industrial assembly lines in France, we provide three preventive options: Type II hard anodizing, precision PVD DLC anti-friction deposition, or pre-applied MoS2 solid lubricant. When assembling titanium-to-titanium or titanium-to-aluminum threads, we recommend an anti-seize paste with copper or nickel bases.
What quality documentation accompanies titanium shipments entering France?
Each delivery includes an EN 10204 3.1 Inspection Certificate providing complete chemical breakdown (confirming limits for C, Fe, N, O, H, Al, and V) and mechanical metrics (Proof load, Tensile strength, Yield, and Elongation). We also provide full dimensional metrology records from digital optical comparators and CMM probes upon request.
Can Navzo machine custom titanium parts directly from STEP/DWG models?
Yes. Our engineering division operates DMG MORI and Haas 5-axis simultaneous CNC turn-mill machining centers. Send your 3D parasolid (STEP, STP, IGES) and 2D toleranced PDF drawing. We run standard Design for Manufacturability (DFM) reviews to ensure appropriate tool-path clearance, radius relief, and cost-effective chip dissipation before final production.
What are the Incoterms and lead times for shipments to Lyon / Rhône-Alpes?
We routinely ship under DAP, CIF, or DDP Incoterms. Air express shipments (via DHL, FedEx, or UPS Air) reach Lyon Saint-Exupéry Airport (LYS) within 4 to 6 business days after dispatch. For large-scale container loads, rail freight via the Belt & Road overland corridor connects directly to central Europe within 18 to 22 days, providing balanced landed economics.
How does Grade 5 Titanium compare to Class 10.9 steel in torque applications?
GR5 titanium fasteners offer an ultimate tensile strength of roughly 950-1050 MPa, matching Class 10.9 steel ratings (1040 MPa) while cutting component mass by 42%. However, because the modulus of elasticity for titanium (E ≈ 114 GPa) is roughly half that of steel (E ≈ 210 GPa), titanium fasteners exhibit higher elastic elongation under load, which provides superior clamp retention under alpine vibration profiles.
What is the minimum order quantity (MOQ) for custom-machined OEM fasteners?
For standard catalog sizes, our production runs typically start at 100 to 200 pieces. For custom CNC components and prototype development in Lyon's R&D facilities, we can machine engineering sample runs of 10 to 50 pieces. This allows physical validation of dimensional fit, torque behavior, and dynamic stresses before full-batch manufacturing.
Connect with Navzo Precision Engineering
Direct from Baoji's Titanium Production Center to Lyon's Industrial Hub. Submit your technical drawings or fastener schedule today for prompt, engineering-backed DFM review and comprehensive factory-direct pricing.
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